--- pol pia... | VILNYMOULIETTY.Per Pain after surgery: In a random sample of 56 patients undergoing a standard surgical

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Pol Pia Vilnymoulietty Per Pain After Surgery In A Random Sample Of 56 Patients Undergoing A Standard Surgical 1 (210.71 KiB) Viewed 51 times

--- pol pia... | VILNYMOULIETTY.Per Pain after surgery: In a random sample of 56 patients undergoing a standard surgical procedure, 21 required medication for postoperative pain. In a random sample of s6 patients undergoing a new procedure, only zo required pain medication. 20 Part 1 of 2 P1 (a) Construct a 98% confidence interval for the difference in the proportions of patients needing pain medication between the old and new procedures. Let , denote the proportion of patients who had the old procedure needing pain medication. Use tables to find the critical value and round the answer to at least three decimal places. A 98% confidence interval for the difference in the proportions of patients needing pain medication between the old and new procedures is -0.042 < P1 - P2 < 0.327 Part 1/2 Part 2 of 2 (b) A physician claims that the proportion of patients who need pain medication is the same for both procedures. Does the confidence interval contradict this claim? Because the confidence interval (Choose one) 0, it (Choose one) proportion of patients who need pain medication is the same for both procedures. the claim that the